Pith Number

pith:OPUU5CEJ

pith:2019:OPUU5CEJ7KR2HRMG2C6GE4SXLM

not attested not anchored not stored refs pending

Scanning a focus through scattering media without using the optical memory effect

Bahareh Mastiani, Ivo M. Vellekoop, Tzu-Lun Ohn

arxiv:1908.08436 v1 · 2019-08-22 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPUU5CEJ7KR2HRMG2C6GE4SXLM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T00:31:55.733824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73e94e8889faa3a3c586d0bc6272575b0b2e3fefeba5e04e2a222ad5f5206542

Aliases

arxiv: 1908.08436 · arxiv_version: 1908.08436v1 · doi: 10.48550/arxiv.1908.08436 · pith_short_12: OPUU5CEJ7KR2 · pith_short_16: OPUU5CEJ7KR2HRMG · pith_short_8: OPUU5CEJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OPUU5CEJ7KR2HRMG2C6GE4SXLM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 73e94e8889faa3a3c586d0bc6272575b0b2e3fefeba5e04e2a222ad5f5206542

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b58f815c0aba048dab7401862c1d974ab352741c9d2e7576992ab8f51755da9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-08-22T15:11:12Z",
    "title_canon_sha256": "6aa0ded8a7a3b3eebbc13babcc408cb7fedae04de373a81df51a3db03d43a625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08436",
    "kind": "arxiv",
    "version": 1
  }
}